5-114
TMPM5200-2
the other hand, the scanning direction is orthogonal to
er is twisted during scanning due to the friction force
■
FFM Observation
In the ordinary contact mode, the scanning direction is parallel to the cantilever axis. In
the FFM image observation, on
the cantilever axis. The cantilev
acting between the specimen surface and the cantilever tip. The FFM measures the
friction force of the specimen surface from this torsion of the cantilever.
The following is the procedure for observing an FFM image in the Advanced contact
mode.
1.
Click on the
button in the Acquisition selection box in the Scan frame and
select 2 Inputs from the pull-down menu.
This operation acquires and displays two images simultaneously. When you observe
age, also acquire a topography image so as to compare it with an FFM
an FFM im
image.
2.
lick on the Scan Angle input box and enter 90 using
the keyboard.
Click on the Scan Area button in the Scan frame to display the scan area
window; then, double-c
Now, the specimen is scanned in a direction orthogonal to the cantilever axis.
3.
Click on the
button in the Display Source—2 selection box and select
Friction Force from the pull-down menu.
